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authorThomas Stephen Lee2015-09-04 22:04:10 +0530
committerThomas Stephen Lee2015-09-04 22:04:10 +0530
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-{
- "metadata": {
- "name": ""
- },
- "nbformat": 3,
- "nbformat_minor": 0,
- "worksheets": [
- {
- "cells": [
- {
- "cell_type": "heading",
- "level": 1,
- "metadata": {},
- "source": [
- "Chapter 6: Motion of charge particle in Electric & Magnetic fields"
- ]
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "Example 6.1.1, Page number 6-6"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "\n",
- "import math\n",
- "\n",
- "#Variable declaration\n",
- "m = 9.1*10**-31 #mass of electron(kg)\n",
- "v = 2.5*10**6 #velocity of electron(m/s)\n",
- "theta = 30*math.pi/180 #angle(degrees)\n",
- "B = 0.94*10**-4 #field strength(Wb/m^2)\n",
- "e = 1.6*10**-19 #electron charge(C)\n",
- "\n",
- "#Calculations\n",
- "r = (m*v*math.sin(theta))/(B*e)\n",
- "\n",
- "l = (5*v*math.cos(theta)*2*math.pi*m)/(B*e)\n",
- "\n",
- "#Results\n",
- "print \"Radius =\",round(r/1e-3,2),\"mm\"\n",
- "print \"Distance covered =\",round(l,3),\"m\""
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "Radius = 75.63 mm\n",
- "Distance covered = 4.115 m\n"
- ]
- }
- ],
- "prompt_number": 6
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "Example 6.1.2, Page number 6-7 "
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "\n",
- "import math\n",
- "\n",
- "#Variable declaration\n",
- "m = 9.1*10**-31 #mass of electron(kg)\n",
- "v = 3*10**7 #velocity of electron(m/s)\n",
- "theta = 45*math.pi/180 #angle(degrees)\n",
- "B = 0.23*10**-4 #field strength(Wb/m^2)\n",
- "e = 1.6*10**-19 #electron charge(C)\n",
- "\n",
- "#Calculations\n",
- "r = (m*v*math.sin(theta))/(B*e)\n",
- "\n",
- "l = (v*math.cos(theta)*2*math.pi*m)/(B*e)\n",
- "\n",
- "#Results\n",
- "print \"Radius =\",round(r,2),\"m\"\n",
- "print \"Distance covered =\",round(l,3),\"m\"\n",
- "#Calculation mistakes in the textbook"
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "Radius = 5.25 m\n",
- "Distance covered = 32.959 m\n"
- ]
- }
- ],
- "prompt_number": 9
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "Example 6.1.3, Page number 6-7"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "\n",
- "#Variable declaration\n",
- "y = 1.5 #displacement(cm)\n",
- "d = 0.42 #distance(cm)\n",
- "Va = 1.6*10**3 #anode voltage(V)\n",
- "D = 28 #cm\n",
- "l = 1.8 #length of plates(cm)\n",
- "\n",
- "#Calculation\n",
- "V = (2*y*d*Va)/(D*l)\n",
- "Vin = V/6\n",
- "\n",
- "#Result\n",
- "print \"Input voltage =\",round(Vin,2),\"V\""
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "Input voltage = 6.67 V\n"
- ]
- }
- ],
- "prompt_number": 11
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "Example 6.5.1, Page number 6-16"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "\n",
- "#Variable declaration\n",
- "da = 0.8 #minor axis(cm)\n",
- "db = 2 #major axis(cm)\n",
- "\n",
- "#Calculation\n",
- "ps = math.degrees(math.asin(da/db))\n",
- "\n",
- "#Result\n",
- "print \"Phase shift =\",round(ps,2),\"degrees\""
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "Phase shift = 23.58 degrees\n"
- ]
- }
- ],
- "prompt_number": 13
- }
- ],
- "metadata": {}
- }
- ]
-} \ No newline at end of file